I wish to remove the recent files list on Ubuntu (kylin) that i installed on one of my friend's comp.
I tried this method :
rm ~/.local/share/zeitgeist/activity.sqlite
zeitgeist-daemon --replace
but it did not work.
Then i deleted recently-used.xbel file
still it did not work.
Then i installed Activity log manager but it does not starts.
What should i do to Clear the list of recently used files.

I would also like to know how i can remove (forget permanently) the details of my wifi connection.